CVE-2012-2657

Buffer overflow in the SQLDriverConnect function in unixODBC 2.0.10, 2.3.1, and earlier allows local users to cause a denial of service (crash) via a long string in the FILEDSN option. NOTE: this issue might not be a vulnerability, since the ability to set this option typically implies that the attacker already has legitimate access to cause a DoS or execute code, and therefore the issue would not cross privilege boundaries. There may be limited attack scenarios if isql command-line options are exposed to an attacker, although it seems likely that other, more serious issues would also be exposed, and this issue might not cross privilege boundaries in that context.

Published: 2012-08-31 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2012-2657 is rated Low Risk (21/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.44%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-2657

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.11% 0.44% +0.33%
2 2025-03-17 0.04% 0.11% +0.07%
3 2023-03-07 0.04%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2657

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
3.9 2.9 [email protected]

Weakness enumeration for CVE-2012-2657

OS Trackers for CVE-2012-2657

vendor priority summary link
debian unimportant CVE-2012-2657 unimportant priority: Debian including 1 source packages (unixodbc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-2657
redhat low https://access.redhat.com/security/cve/CVE-2012-2657
suse medium CVE-2012-2657 severity moderate: SUSE including 10 source package names (libodbc2, libodbc2-32bit, …), 144 product×package rows across 34 product lines (SUSE CaaS Platform 4.0, SUSE CaaS Platform 4.5, … (34 product lines)): Known Not Affected 144. https://www.suse.com/security/cve/CVE-2012-2657/
ubuntu low CVE-2012-2657 low priority: Ubuntu including 1 source packages (unixodbc), 17 status rows across 17 suites (artful, hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 16, needs-triage 1. https://ubuntu.com/security/CVE-2012-2657

Affected software / configurations for CVE-2012-2657

Vendor Product Version Raw CPE
unixodbc unixodbc <= 2.3.1 cpe:2.3:a:unixodbc:unixodbc:*:*:*:*:*:*:*:*
unixodbc unixodbc 2.0.10 cpe:2.3:a:unixodbc:unixodbc:2.0.10:*:*:*:*:*:*:*
unixodbc unixodbc 2.3.0 cpe:2.3:a:unixodbc:unixodbc:2.3.0:*:*:*:*:*:*:*

References for CVE-2012-2657

cvelogic Threat Intelligence